sanders



Jenn J. sAN,n n-ns,JR., or VNew YORK, NQY.

Leim-8 Parent .zio/reasoned May 26, 186s.

IMPROVEMENT IN MITRINGLMACHINES.

,dlgs dgrzhule nicht it in iigcse fttos zrtmt ant mating pitt nf ilgr'e simu.

TOALL WHOM IT,MALYOONCERN:, V l

Be it knou'n that ,V JOHNv J. SNDERS, Jr., ofNew York, in the county and Stute of New York, have invented a. new and improved Mitringuoh'ine; and I do hereby declare that the following is n full, clear, and exact description thereof, which will enable others skilled in the'art. to make and use the same, reference being had to the accompanying drawings, forming'part of this speciicotion.

. Figure 1 represents side elevation of my improved nitring-muc'hine.

Figure 2 is a plan or top view of the same;

Figure 3 is o. vvertical trnnsverseseotion of the same, taken on the pinne of the line a: zu, iig. 1

Figure liris n detail faceiview of iny combined ser.' 'and planer.

Figure 5'is o'detnil face view of my improved plane nttaclnnent.v

Figure 6 is a. longitudinal sectional view of the same.

Similar.lettensbfneference indicate corresponding parts. v

This invention relates to a. newvfmuehincl for mitring 'mouldings and other articles, and consists, first, in n new mnncr of combiningplaning-knives with circular saws, so that the edges of the mouldings which are being san'ed'mny at the seine time, end by thc seme instrument, be pinned. i Y

Theinrention consists, second, in o new manner of constxiucting circular-saw bindes,'1vith n view to reduce' their expense, and to prevent them from shrinking.

The invention consists, third, in a nen' manner of 'attaching the pluningdrons in their ceses, which is done .so that the face of each planing-iron remains perfectly smooth, no fastening-screws projecting from the same,

lnor any 'slots being arranged through them. i

The invention consists, fourth, in the manner of constructing the sliding table of my improved mitringmachin-e, so that the length of the mouldings to be cui; con be gnuged at will, whereby much time and labor are saved. ,e Y

The invention, noIy, consistsin the general varrangement and combination o" the parts which constitute my improved mitringmachine. i

A, in thcrdrewing, represents' the frame of'my improved mining-machine. The seme is mede of suitable i materiel, size, and shape, :md suiiiciently strong to support the shafts nndmachinery pertaining to my mitringmachine. v

B is a. horizonml shaft, having its bearings in the frdlneA, und receiving rotury' motion,y of any desired velocity, from suitabie mechanism. Upon each end of the shaft B, or nt leest on each side of the frame A, is mounted on the'shaft B a circuler block, -C, made of metal or other suitable materiel. Each block, C, carries un annular saivblzrde, D, anda suitable number of plzining-knives, EE.

The saw-blude D is annular, and has 'flo'nge, a, which .projects from one face, as shown. This. Bange a strengthens the bla-de, und prevents it'rom shrinkage, and serves to secure the binde to theblock C by means of bolts or screws b Zi, as shown more particularly in iig. 3. The teeth are formed either directly on the saw blades, ztsshon'n, or are attached t'o the sanne in eny'suitoble manner. The block C is perforated for the recepi tion of' the plnni'nglinives E'Eyas shown. The edges of the knives t into grooves c c, which are provided i'n the block C, as indicated in fig. 6. The knives are perfectly smooth on their surface, n o slots or perforutions/ being cut through the same. The lower face of each knife rests upon a Wedge-shaped block, F, which is arranged in the block C, nnd which can he moved backend forth by means of a screw, d, as in iig. 6. The block F, restf ing upon an inclined surface, is, when moved-by the screw, caused to move -up or down, as may be desired. When the knife is tted into the slot in the block C, sothzit its edges are in the grooves c, the screw is turned,

Y so as to force the wedge F against the knife, when the latter will be firmly clamped between the said wedge and Athe upper edge of the groove. The knife niil'lthus be firmly secured in the block, :ind will not be able to move spontaneously in the block C.. 4 v

The knives E are in this manner left with a. smooth surface, and shsving's con, consequently, not be ciogged inthe apertures of the block C. This lpart of my invention is also applicable to ordinary carpenters planes, as the smooth-faced planing-iron is a. decided improvement. i

The'cutting-edges of the knives E E project from the inner faces of the blocks C, to which, also, the saw blades D are attached, asin fig. 3. i

Upon the frame A isv midnged, between the blocks C, n sliding horizontal carriage, G, which receives reciprocating motion by suitable mechanism. Upon the face of this carriage are fitted one or more prol'ecting V-shnped blocks or guides,l-l, in the inanner shown in iig. 2, which serve :1s rests for the mouldings to he cut on either side. The carriage'is also provided with n. sliding gauge, e, which is arranged at or near the edge of one ofthe blocks H, and which serves to indicate-the lengthof the moulding tohe cut, to facilitate which, wgrzrduuted seule muy be marked on the face of the .carriage G, as indicated in fig. 2. v When :t moulding is to be mitred', its proposed length isrst determined hy adjusting the gauge e. lThe moulding'is then put with one end against the gauge,.and with a side zigain'st the block H, end-the carriage is moved forward, so that the portionof the moulding which projects from the table-Gemey, by they saw, be severed from tha-t resting' on the table, The edge of'the latter piece is then planed by the cutters E: By having the gnge e, any desired number of inouldings may be quiclclyfinitred, so as to be of exact equal length.

The machine-may be provided with one set'of saws and plaines, or with two, as shown. I claim as new, and desire to secure byA Letters Patent- 1. The block C, attached to the sew D, for the purpose of holding the planing-knives E, all constructed, arranged, and operating as described,y for the purpose specified.

2. The adjustment of the planing-knives E in the block C, by ineens of the inclined grooves c, nut- F, and n screw-bolt d, all constructed,l arranged, lend operating as described, for the purpose specified.

JOHN J. SANDERS, Jn.

Witnesses:

WM. F. McNAMARA, ALEX. F. ROBERTS. 

